Limburg
An ultra-secret NATO command centre was hidden in the belly of Cannerberg during the Cold War.
NATO emergency bridge
In the 1950s, anyone who wanted to cross the Upper Merwede had to rely on a ferry service. This was not very convenient in emergencies.
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In the early nineteenth century, the industrial revolution swept across continental Europe and one steelworks after another rose from the ground. Europe had hundreds of blast furnaces, but since the mid-twentieth century, Europe's steel industry has been slowly going downhill.
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